Development of object identity was studied within the framework of a hiding game that varied the objects themselves instead of their spatial positions. (Authors)

Data from infants unable to complete experimental sessions were compared to those for whom there were complete data. Results suggest that the elimination of large numbers of infants may have a potentially biasing effect on reported data. (Authors)

Analyzes conversations between one mother and her 22-month-old child, describing sequences the pair used in clarifying each other's focus of attention and in instructing and learning about concepts and motor skills. Results highlight the importance of the intensive learning environment provided by home conversations. (RH)

Interactions of adults with a single infant, dressed as either a male or female, were recorded and analyzed for direction of gaze, facial expression, physical contact, and toys used. Interviews followed. Results shows that both male and female parents behave differently toward unfamiliar infants on the basis of perceived sex. (AOS)

Three children were observed in their homes approximately once a month for one year, from their 11th through 22nd month of life. Based on observation of the children's changing nonverbal behaviors, a five-level developmental sequence documenting the evolution of the cognitive notion of agent was developed. (Author)

Fifteen pairs of twins were investigated as to the influence of pre-walking practice in an infant walker on the onset time of independent walking. A one-way analysis of variance indicated there was no significant difference between the mean ages of initial walking for the experimental and control groups. (Author/PN)

In two sessions, the duration and tempo of toy play of infants and reaction of frustration were measured. Correlations indicated a general relationship between response persistence during play and attempts to escape frustrating situations. (Author/CM)

Differences in response of four- to seven-month-old infants to tachistoscopically presented photographs of two human faces suggest infants were able to remember a frequently presented face from trial to trial and discriminate it from a discrepant, infrequently presented face. Findings suggest event-related brain potential (ERP) responses could…

Results of two studies were consistent with the view that 3-month-old infants perceive movement in depth during their own movement. They can move to avoid a surface just prior to contacting it. (Author/RH)

Two studies (one cross-sectional and one longitudinal) examined the relation between two developmental trends in play during the second year of life: the emergence of decentered acts, and the integration of separate acts into simple sequences. Subjects were infants aged 13, 19, and 24 months. (CM)

Compares the responses of 14 child abusers and a matched group of nonabusers to videotapes of crying and smiling infants. Psychophysiological and subjective self-report measures were taken. (SS)

To test the hypothesis that early intervention can enhance the development of high risk preterm infants, a prescribed multimodal sensory enrichment program, within a regional neonatal intensive care unit, was designed and implemented with 28 preterm infants. Journal Availability: American Academy of Pediatrics, P.O. Box 1034, Evanston, IL 60204…

Five experiments were conducted in order to determine what effect independent movement of an internal element has on the externality effect in young infants, and to consider the value of contrasting explanations of the effect itself. Subjects were 90 infants ranging in age from 28 to 49 days. (MP)